lkml.org 
[lkml]   [2018]   [Jul]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 1/6] drivers: qcom: rpmh-rsc: return if the controller is idle
Date
From: Lina Iyer <ilina@codeaurora.org>

Allow the controller status be queried. The controller is busy if it is
actively processing request.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
---
Changes in v2:
- Remove unnecessary EXPORT_SYMBOL
---
drivers/soc/qcom/rpmh-internal.h | 1 +
drivers/soc/qcom/rpmh-rsc.c | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+)

diff --git a/drivers/soc/qcom/rpmh-internal.h b/drivers/soc/qcom/rpmh-internal.h
index a7bbbb6..4ff43bf 100644
--- a/drivers/soc/qcom/rpmh-internal.h
+++ b/drivers/soc/qcom/rpmh-internal.h
@@ -108,6 +108,7 @@ struct rsc_drv {
int rpmh_rsc_write_ctrl_data(struct rsc_drv *drv,
const struct tcs_request *msg);
int rpmh_rsc_invalidate(struct rsc_drv *drv);
+bool rpmh_rsc_ctrlr_is_idle(struct rsc_drv *drv);

void rpmh_tx_done(const struct tcs_request *msg, int r);

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 33fe9f9..42d0041 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -496,6 +496,26 @@ static int tcs_ctrl_write(struct rsc_drv *drv, const struct tcs_request *msg)
}

/**
+ * rpmh_rsc_ctrlr_is_idle: Check if any of the AMCs are busy.
+ *
+ * @drv: The controller
+ *
+ * Returns true if the TCSes are engaged in handling requests.
+ */
+bool rpmh_rsc_ctrlr_is_idle(struct rsc_drv *drv)
+{
+ int m;
+ struct tcs_group *tcs = get_tcs_of_type(drv, ACTIVE_TCS);
+
+ for (m = tcs->offset; m < tcs->offset + tcs->num_tcs; m++) {
+ if (!tcs_is_free(drv, m))
+ return false;
+ }
+
+ return true;
+}
+
+/**
* rpmh_rsc_write_ctrl_data: Write request to the controller
*
* @drv: the controller
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project
\
 
 \ /
  Last update: 2018-07-27 12:06    [W:0.160 / U:3.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site